Gauge for eyeglass mountings



XVI-HANSEN.

GAUGE FOR EYEGLASS MOUNTINfiS.

APPHCATION FILED MAY 20. I920.

1,421A65. Patent d July 4, 1922;,

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MARINIUS HANSEN, OF BROOKLYN, NE! YORK.

Application filed May 20, 1920. Serial No. 382,906

T 0 all whom it may concern:

Be it known that I, M-xiurrlcs HANSEN, a-

subject ofthe King of Norway, residing in the borough of Brooklyn, of the city of New York, in the State of New York, have invented certain new and useful Improvements in Gauges for Eyeglass Mountings, of'which the following is a specification,reference being had to the accompanying drawing, form'- ing a. part hereof.

This invention relates to an improved gauge to be used in adjusting the strapsof lens mountingsto accommodate lensesof varying thicknesses, an ordinary pair of pliers being a suitable tool for effecting ad j ustment with the improved gauge. Gauges, as heretofore known, have not been entirely satisfactory either because they were too expensive for the average Optician orthey were not effective to insure'an adjustment of the lens straps with that degree of nicety which is required. The improved gauge pere mits the use of ordinary pliers and yet is of such form as to insure the adjustment of the two lens straps into symmetrical relation to the lens to be received therebetween. Further, the adjustment is such as to bring the straps into parallelism with one another, so that the lens will be mounted in proper relation to the post. The improved gauge has the further advantage of cheapness of cost and facility of use. It is provided with a tapered flange which permits the ready introduction of the gauge between the lens straps regardless of the distance between the straps at their base, so that the initial positioning of the gauge requires no special care or skill on the part of the user. The invention will be described in greater detail in connection with the illustrated embodiment shown in the accompanying drawing, in: which Figure 1 is a view in front clevationof a lens secured in its mounting.

Figure 2 is a view in side elevation ofa gauge constructed in accordance with the invention. 1

Figure 3 is a view looking at the under side of the gauge shown in Figure 2.

Figure 4c is a view similar to Figure 3 of an improved gauge member of slightly different form from that of Figure 3.

Figures 5 and 6 are sectional views taken on the plane indicated by the lines 5-5 and 66 of Figures 3 and 4 respectively, and looking in the direction of the arrows.

' Specification of Letters Patent. Pat t d J 4, 1922.

Figure 7- is a view showing one of the gauge members n place during the bendin of the lens straps with an ordinary pair o f pliers. I

F igure 8 is a view in sideelevation of the parts shown in F igure .7, the gauge member being-shown in sectional view taken on the plane indicatedby the line 88 of Figure 7 and looking in the direction of the arrows.

F igure 9 is a view similar to Figure 8, but showing the gauge member of different dimensions in place for the adjustment of lens straps. I

While the present; invention is concerned with an improved gauge member as a new article of manufacture, it will be understood that the invention contemplates the use of a ser 1es of such gauge members by an opticlan 1n order that he mayv bend lens straps to accommodate lenses of different'thicknesses, the gauge members being of graduated thicknesses so astogive the desired range of adjustment. It is now-the usual practise for an op'tician to keep in stocka series of lens mounts having straps adjusted to recelve lenses of different. thicknesses, the mounting'having the straps so bent at the factory. Nogauge member or device for permitting these straps to be adjusted by the Optician has come intogeneral use. The advantages of adjusting the straps aremany. The optician is required to keep in'stock a fewer number of mountings and he should always be able to take one of-these mountings and adjust thestraps to receive any lens. However, in making this adjustment it is essential that the straps shall be pressed toward one another and moved into a position .of parallelism and in symmetrical relation to the center line of the-lens when in position so that the lens will assume the correct relation'to the post. LFurther, any'device of'this character whichxwill prove sat: isfactory'must be. inexpensivo'in original. cost and convenient in use. that the improved gaugemember satisfies all of these requirements. c

In one form, the. body a of" the improved gaugemember isadapted for use. adjacent one end only. The gauge member is of generally curved form and has secured to its reverse face a tapered flange 6 which serves to space the lens straps at their base when the straps are bent toward one another. For convenience, the gauge body a may carry It is believed therewith an arm at having an eye a therein ior securing the gaugememberrtoa:keyyrmg or other retaining device. As shown in Figure 5, the body a of theigaugei memberis formed with opposite side walls which are disposed in: absolute parallelismgtthe thick ness of the gauge body corresponding to the thickness of the lens to bemountedwithinthe lens straps. In the optical tradethere are a certain number of standard thicknesses" of lens and in realizing the most advantageous objects of the present inventiona series of gauge members corresponding to these" several standard thielmesses'of lens will. be furnished so that the Optician can adjust'the straps to'receive any ioneof these'len'ses:

A typical mountin is. shown" at 0 1n Figures 7', 8and9. he strapsa thereof receive between them a lens such as el when the" straps are properlyjadjusted? In uslng the improved gauge a'the" gaging'rend thereof is slid in between thestraps c ofthe-niountiing to be adjusted. The tapered flange" b of the gauge will bethrust in betweerrthe straps 0- at their base and by reason of the taper on the flange itis evident that "it is immaterial what thespalr ofthe straps at wardly between th'esestraps' only "until' the straps bind on the tapered edges offthe fiangebt Withjthe gauge in such position the straps a" will overlie the body wo'f the gauge. When these straps are engaged by the jaws of an'ordi'nary-pairof pliers etlrey are moved inwardly towards one another until theyrest flat against the opposite faces of the gaugea. The flange 71 being of greater width than the gauge a "insuresa movement ofthe straps'c inwardlyuntil they assume a position of absolute parallelism and lie in symmetrical relation to the lenswhen introduced between them. Gaugemembers as heretofore contemplated' havef not been of such character as 'to bring th'e straps into parallelism and 1n ymmetrical relation to the lens. In the use of such-known gauge members it was" usual for" one strap to be prising a curved body section to rest between provided'zwithr flanlges gy it of 7 be moved in between the lens straps regardless-oii'their initial spacing. However, in the form of gauge, the gauge f proper is of uni-form'thickness throughout its length, so that the adjustment of the straps will be thesame, no matter what end ofthe gauge 1s inserted between the straps. It is evident that this principle might be employed to provide two gauge members in a single body. In such case one end of the gauge f would be'of diflerent thickness from the other end and the proper end inserted between the straps depending upon the thickness of the lensto'be mounted. As shown in Figure 9, the-gau ef is used in association with a pair of pliers e in the precise manner hereinbefore described. The possible rangeof adjustment'of the lens straps 0 from their lnitial spread is well indicated by the two views ofFigures 8"and 9. With a mounting having the spread shown in Figure 8-it is evident that the straps can be readily moved together to receive a-thinnerlens by employmg a thinner gaugemember, such asf shown in Figure 9, the adjustment moving the straps toward one another uniformly and bringing them into parallelism. The important feature of the improved gauge resides in the provision of the overhanging? flange 6' whereby the base of the straps is held in spaced relationship while the'bodies thereof can'be'bent to the desired span;

I claim as my invention:

1. Agauge for eyeglass mountings, comthe straps, and a flange carried with the body" section for its entire length'andex telrding equal distances from its sides.

gauge for eyeglass mountings, comprisln'g a curved body section to rest between the; straps, and a flange tapered symmetrically'andextending equal distances from the sidesrof the body section and forits entire length. i

A gauge foreyeglass-mountings; com prising curved bod'ysection' to rest between the'straps and a tapered flange carried with the-body section and extendingvequaldis tancesviiromi its: sides:

4:. A gauge for eyeglass mountingsjcom prising:- a:: body section to rest between-the straps and having. 1 its sides in parallelism, and reversel y tapered: flanges: at opposite ends; on the body section and r oi varying widths.

This specification signedthis l9th-zda'y of May A. 111920; I

MARINIUS HANSEN; 

